DOS ain't dead

x86 BIOS emulator in Win Vista/7 (Developers)

posted by RayeR , CZ, 23.12.2009, 00:23

Hi,
I just found an interesting site (gurus here maybe already knows it) about windows kernel and there are also described some undocummented functions. E.g. I wonder that WinVista+ have BIOS emulator that allow you to make BIOS call and get/put some data to/from 16bit world. I'm not sure but seems it even works on 64bit OS. Maybe it would be usefull for some VDD enhancement for DOS progs under NTVDM.

http://www.geoffchappell.com/viewer.htm?doc=studies/windows/km/hal/api/x86bios/index.htm&tx=7,8,5,3

Here's also example with sources:

http://www.geoffchappell.com/viewer.htm?doc=studies/windows/km/hal/api/x86bios/fwmemmap.htm

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DOS gives me freedom to unlimited HW access.

Complete thread:

• x86 BIOS emulator in Win Vista/7 - RayeR, 23.12.2009, 00:23 (Developers)